Stock-based compensation (Schedule of assumptions used to estimate the fair value of options) (Details) - Stock options [Member]	9 Months Ended
	Sep. 30, 2025 $ / shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Exercise price	$ 2.99
Share price	$ 2.99
Dividend	0.00%
Risk-free interest	3.89%
Estimated life (years)	5 years 3 days
Expected volatility	94.61%